An automatic energy-saving crystallization centrifugal distillation tank and its processing technology

Abstract

The invention relates to the field of menthol production and processing, and specifically to an automatic energy-saving crystallization centrifugal distillation tank and a processing technology thereof. The invention comprises a distillation tank body, wherein a pressure gauge is installed on the top of the distillation tank body, an exhaust pipe is connected and fixedly installed on the top of the distillation tank body, and a valve for controlling the opening and closing of the exhaust pipe is connected and installed on the outer side of the exhaust pipe. When the invention is working, ethanol gas sinks in the air, and ethanol at the bottom of the lower cover enters the gas bin from the air inlet pipe and the air inlet one-way valve, and the inhaled ethanol is subsequently squeezed and discharged from a hollow placement ball, and an adsorbent is built in the hollow placement ball to absorb ethanol, thereby reducing the overflow of ethanol. Compared with the static absorption in the prior art, the fluidity of ethanol is enhanced, and the absorption efficiency is improved. The hollow placement ball rotates under the obstruction of a brush, and its exposed position is constantly changed, so that the adsorbent in each part can be fully utilized, the adsorption efficiency is further improved, and the overflow and residue of ethanol are reduced.

Description

Technical Field

[0001] The invention relates to the field of menthol production and processing, in particular to an automatic energy-saving crystallization centrifugal distillation tank and a processing technology thereof. Background Art

[0002] When purifying isopulegol, ethanol solvent is added to 97% isopulegol liquid, the temperature is cooled to minus 40 degrees to precipitate crystals, and then most of the ethanol solvent is removed by centrifugation to obtain 99.9% crystals. At this time, the crystals contain a small amount of ethanol solvent, about 5%. The crystals containing 5% ethanol solvent are heated and melted, and then the ethanol solvent is removed by distillation. The standard is that the gas phase detector cannot detect it, generally less than one in one hundred thousand. At this time, 99.9% high-purity isopulegol liquid is obtained, which is filtered and barreled.

[0003] During the distillation process, the distillation tank is connected to the ethanol collection mechanism through an exhaust pipe and a valve. Over time, the valve may corrode and leak. Ethanol is flammable and volatile, and can form a combustible mixture with air. When the leaked ethanol encounters open flames, high temperatures or other ignition sources, it can easily cause fires or explosions. Such fires and explosions will not only cause direct harm to personnel, but may also cause serious damage to surrounding equipment and buildings.

[0004] For this reason, some distillation equipment will add overflow prevention mechanisms and ethanol absorption components on the outside of the valve, such as bentonite and other adsorbents. Taking bentonite as an example, when exposed to the air for a long time, bentonite has good hygroscopicity, which means that it easily absorbs moisture in the air. When bentonite is exposed to the air, it will gradually absorb moisture in the air, causing changes in the internal structure, which may affect the adsorption properties of the bentonite; when the bentonite is fixed, the ethanol inside the overflow prevention mechanism has poor fluidity, and the absorption efficiency of the bentonite is low. The bentonite on the side away from the air inside the overflow prevention mechanism cannot directly contact the ethanol, and the absorption effect is poor. Summary of the invention

[0005] In response to the above problems, the present application provides an automatic energy-saving crystallization centrifugal distillation tank to solve the problems in the prior art that the adsorption performance of bentonite is reduced due to long-term exposure to air, and when the bentonite is fixed, the fluidity of ethanol inside the anti-overflow mechanism is poor, the absorption efficiency of the bentonite is low, and the bentonite on the side away from the air inside the anti-overflow mechanism cannot directly contact with ethanol, resulting in poor absorption effect.

[0006] The technical scheme of the present invention is as follows: an automatic energy-saving crystallization centrifugal distillation tank comprises a distillation tank body, a pressure gauge is installed on the top of the distillation tank body, an exhaust pipe is connected and fixedly installed on the top of the distillation tank body, a valve for controlling the opening and closing of the exhaust pipe is connected and installed on the outside of the exhaust pipe, a hand wheel for controlling the switch of the valve is installed on the top of the valve, and an overflow prevention mechanism for preventing overflow and absorbing dirt is installed on the periphery of the hand wheel, the overflow prevention mechanism comprises a plurality of groups of extrusion columns that can move in the vertical direction, a plurality of hollow placement balls are inlaid and rotatably installed on the inner side of the extrusion column, an adsorbent is placed on the inner side of the hollow placement ball, an air bin is installed on the outer side of the extrusion column in a sliding and clamping manner, and the air bin and the extrusion column are staggered and sealed when idle, and the hollow placement ball is in a sealed state; when the ethanol detection mechanism detects a valve leak, the extrusion column moves up, the hollow placement ball leaks out, and the leaked ethanol is absorbed; the brush is installed obliquely downward, the hollow placement ball moves up and blocks the brush, and the hollow placement ball rotates to change its exposed position; the extrusion column moves up and down to suck the leaked ethanol from the air intake check valve and discharge it from the hollow placement ball.

[0007] Furthermore, an upper cover and a lower cover are installed on the outer side of the exhaust pipe, and an assembly unit is fixedly installed on one end of the upper cover and the lower cover close to each other.

[0008] Furthermore, a motor is fixedly installed on the inner side of the upper cover, a plurality of air bins are evenly fixedly installed on the motor output end, an air intake one-way valve is connected and fixedly installed on the top of the air bin, and an air intake pipe is connected and fixedly installed on the top of the air intake one-way valve.

[0009] Furthermore, the ethanol detection mechanism is fixedly mounted on the inner bottom of the lower cover, and the ethanol detection mechanism is electrically connected to the motor.

[0010] Furthermore, the top of the handwheel is penetrated by a plurality of matching holes matching with the bottom of the extrusion column, and the matching holes include a vertical surface and an arcuate surface; the bottom of the extrusion column is provided with an arcuate side and a vertical side, the arcuate side matches with the arcuate surface, and the vertical side matches with the vertical surface.

[0011] Furthermore, a return spring is fixedly installed between the top of the extrusion column and the inner top of the air bin.

[0012] Furthermore, a plurality of first through holes are formed through the outer side of the gas storage near the top, and a film is fixedly installed on the periphery of the first through holes of the gas storage.

[0013] Furthermore, a mounting rod is fixedly installed on the top of the inner side of the air bin, and a brush is fixedly installed on the outer periphery of the mounting rod.

[0014] Furthermore, a hollow groove is opened on the top of the extrusion column, an installation groove is opened on the inner side of the extrusion column, the hollow placement ball is movably installed in the installation groove, the installation groove is connected with the hollow groove, the installation rod is located in the middle of the hollow groove, and multiple second through holes are opened through the outside of the air chamber.

[0015] The present invention also provides a processing technology using the above-mentioned automatic energy-saving crystallization centrifugal distillation tank, and the processing technology comprises the following steps:

[0016] S1: adding ethanol solvent to 97% isopulegol liquid, cooling to -40 degrees Celsius, and precipitating crystals;

[0017] S2: Most of the ethanol solvent is removed by centrifugation to obtain 99.9% crystals;

[0018] S3: heating and melting the crystals containing 5% ethanol solvent, and then removing the ethanol solvent through the distillation tank body;

[0019] S4: Filter and barrel.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) The automatic energy-saving crystallization centrifugal distillation tank described in the present invention has a gas bin and an extrusion column that are offset and sealed when idle, and the hollow placement ball is in a sealed state, which reduces the possibility of water absorption by the adsorbent and extends its storage life. When ethanol overflows, the valve is automatically closed as a first measure to reduce the overflow of ethanol. The rotation of the motor drives the hollow placement ball to move upward to absorb the ethanol, which is a second measure to reduce the overflow of ethanol.

[0022] (2) Ethanol gas will sink in the air. Ethanol at the bottom of the lower cover enters the gas chamber through the air intake pipe and the air intake one-way valve. The inhaled ethanol is then squeezed out from the hollow placement ball. The hollow placement ball has a built-in adsorbent to absorb the ethanol. As a third measure to reduce the spillage of ethanol, compared with the static absorption in the prior art, it enhances the fluidity of ethanol, improves the absorption efficiency, and reduces ethanol residue.

[0023] (3) The hollow ball rotates under the obstruction of the brush, and its exposed position changes continuously, so that the adsorbent in each part can be fully utilized and the adsorption efficiency is further improved. As the fourth measure, the spillage and residue of ethanol can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 A schematic diagram of the overall structure of an automatic energy-saving crystallization centrifugal distillation tank provided by the present invention;

[0026] Figure 2 A schematic diagram of the anti-overflow mechanism structure of an automatic energy-saving crystallization centrifugal distillation tank provided by the present invention;

[0027] Figure 3 A schematic diagram of the internal structure of the upper cover of an automatic energy-saving crystallization centrifugal distillation tank provided by the present invention;

[0028] Figure 4A schematic diagram of the hand wheel structure of an automatic energy-saving crystallization centrifugal distillation tank provided by the present invention;

[0029] Figure 5 A schematic diagram of the gas bin connection of an automatic energy-saving crystallization centrifugal distillation tank provided by the present invention;

[0030] Figure 6 A schematic diagram of the internal structure of a gas bin of an automatic energy-saving crystallization centrifugal distillation tank provided by the present invention;

[0031] Figure 7 A schematic diagram of the internal structure of an extrusion column of an automatic energy-saving crystallization centrifugal distillation tank provided by the present invention;

[0032] Figure 8 for Figure 7 Enlarged view of point A.

[0033] In the figure:

[0034] 1. Distillation tank body;

[0035] 2. Exhaust pipe;

[0036] 3. Pressure gauge;

[0037] 4. Anti-overflow mechanism; 41. Upper cover; 42. Lower cover; 43. Assembly unit; 44. Motor; 45. Air chamber; 46. First through hole; 47. Second through hole; 48. Inlet check valve; 49. Inlet pipe; 410. Film; 411. Extrusion column; 412. Return spring; 413. Mounting rod; 414. Brush; 415. Hollow placement ball; 416. Mounting groove; 417. Hollow groove; 418. Arc side; 419. Vertical side; 420. Vertical surface; 421. Arc surface; 422. Ethanol detection mechanism;

[0038] 5. Valve;

[0039] 6. Handwheel. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0041] like Figure 1-Figure 8As shown, the embodiment of the present invention provides an automatic energy-saving crystallization centrifugal distillation tank, including a distillation tank body 1, a pressure gauge 3 is installed on the top of the distillation tank body 1, which is convenient for the staff to check the internal working pressure of the distillation tank body 1, and the top of the distillation tank body 1 is connected to an exhaust pipe 2 fixedly installed. When isopulegol is distilled, ethanol is discharged from the exhaust pipe 2. The outer side of the exhaust pipe 2 is connected to a valve 5 for controlling the opening and closing of the exhaust pipe 2, and a handwheel 6 for controlling the switch of the valve 5 is installed on the top of the valve 5. When the handwheel 6 rotates upward, the valve 5 is opened, and when the handwheel 6 rotates downward, the valve 5 is closed. 6 An overflow prevention mechanism 4 for preventing overflow and absorbing dirt is installed on the periphery, and the overflow prevention mechanism 4 includes multiple groups of squeezing columns 411 that can move in the vertical direction, and multiple hollow placement balls 415 are rotatably mounted on the inner side of the squeezing columns 411, and an adsorbent is placed inside the hollow placement balls 415 to absorb overflowed ethanol and prevent ethanol from overflowing and polluting the surrounding environment. An air chamber 45 is installed on the outer side of the squeezing columns 411 in a sliding manner. When idle, the air chamber 45 and the squeezing columns 411 are offset and sealed, and the hollow placement balls 415 are in a sealed state, which reduces the possibility of the adsorbent absorbing water and extends its storage life.

[0042] When the ethanol detection mechanism 422 detects that the valve 5 is leaking, the extrusion column 411 moves upward, and the hollow placement ball 415 leaks out to absorb the leaked ethanol; a mounting rod 413 is fixedly installed on the top of the inner side of the gas chamber 45, and a brush 414 is fixedly installed on the outer periphery of the mounting rod 413. The brush 414 is installed tilted downward, and the hollow placement ball 415 moves upward and is blocked by the brush 414, and the hollow placement ball 415 rotates to change its leakage position.

[0043] In this embodiment, the hollow placement ball 415 moves upward and contacts the brush 414, and part of the bristles of the brush 414 are inserted into the hollow placement ball 415, hindering the upward movement of the hollow placement ball 415. The bristles are flexible and can be bent and reset, so that the hollow placement ball 415 rotates. The hollow placement ball 415 moves downward and also contacts the brush 414, but at this time the moving direction of the hollow placement ball 415 is close to the inclination direction of the brush 414, and there is only a small friction between the two. The hollow placement ball 415 may rotate, but the amplitude is small, so the hollow placement ball 415 will rotate, and its exposed position is constantly changing, so that the adsorbent in each part can be fully utilized, and the adsorption efficiency is improved.

[0044] Specifically, the squeezing column 411 moves up and down, sucking the leaked ethanol from the air intake check valve 48 and discharging it from the hollow placement ball 415, thereby enhancing the fluidity of the ethanol and improving the adsorption efficiency of the adsorbent.

[0045] Specifically, an upper cover 41 and a lower cover 42 are installed on the outer side of the exhaust pipe 2 , and an assembly unit 43 is fixedly installed on one end of the upper cover 41 and the lower cover 42 close to each other. When the staff performs maintenance, they disassemble the assembly unit 43 and remove the upper cover 41 and the lower cover 42 .

[0046] Specifically, a motor 44 is fixedly installed on the inner side of the upper cover 41, and multiple air chambers 45 are evenly fixedly installed on the output end of the motor 44. An intake one-way valve 48 is connected and fixedly installed on the top of the air chamber 45. An intake pipe 49 is connected and fixedly installed on the top of the intake one-way valve 48. The density of ethanol gas is 1.59 kg / m³, while the density of air under standard conditions is about 1.29 kg / m³, that is, ethanol gas will sink in the air. The upper half of the intake pipe 49 is hard for easy movement, and the lower half is soft for easy rotation through the exhaust pipe 2. The bottom of the intake pipe 49 fits with the bottom of the lower cover 42, so that the overflowed ethanol can be sucked into the air chamber 45 from the intake pipe 49.

[0047] Specifically, the ethanol detection mechanism 422 is fixedly installed on the inner bottom of the lower cover 42 , and the ethanol detection mechanism 422 is electrically connected to the motor 44 .

[0048] In this embodiment, during distillation, ethanol flows from the exhaust pipe 2 and the valve 5 to the collecting mechanism. If the valve 5 overflows with dirt due to aging or other reasons, the ethanol detection mechanism 422 detects the ethanol and sends an electrical signal to the data processor. The data processor sends an electrical signal to the motor 44. The motor 44 rotates to drive the hand wheel 6 to rotate and close the valve 5, which is the first measure to reduce the overflow of ethanol.

[0049] Specifically, a plurality of mating holes that match with the bottom of the extrusion column 411 are formed through the top of the handwheel 6, and the mating holes include a vertical surface 420 and a curved surface 421; a curved side 418 and a vertical side 419 are formed at the bottom of the extrusion column 411, the curved side 418 matches with the curved surface 421, and the vertical side 419 matches with the vertical surface 420.

[0050] In this embodiment, the valve 5 is opened and closed, and the motor 44 rotates to drive the air chamber 45 and the extrusion column 411 to rotate, and the hand wheel 6 is driven to rotate forward and reverse through the vertical section or vertical side 419 on the outer side of the bottom of the extrusion column 411, thereby realizing the opening and closing of the valve 5. In terms of position relationship, when the hand wheel 6 rotates upward, the valve 5 is opened, and when the hand wheel 6 rotates downward, the valve 5 is closed. When the valve 5 is fully closed, the top of the arc side 418 is about to be flush with the bottom of the arc surface 421.

[0051] Specifically, a return spring 412 is fixedly installed between the top of the squeezing column 411 and the inner top of the air chamber 45, and is used to drive the squeezing column 411 to move downward and return to its original position.

[0052] Specifically, a plurality of first through holes 46 are formed through the outer side of the gas chamber 45 near the top, and a film 410 is fixedly installed on the outer periphery of the first through holes 46 of the gas chamber 45 for storing the squeezed gas.

[0053] Specifically, a hollow groove 417 is provided on the top of the extrusion column 411, a mounting groove 416 is provided on the inner side of the extrusion column 411, a hollow placement ball 415 is movably installed in the mounting groove 416, the mounting groove 416 is connected to the hollow groove 417, the mounting rod 413 is located in the middle of the hollow groove 417, and a plurality of second through holes 47 are provided through the outer side of the air chamber 45.

[0054] In this embodiment, the motor 44 continues to rotate, and the arc-shaped side 418 moves upward under the guidance of the arc-shaped surface 421, that is, the extrusion column 411 moves upward, the return spring 412 is compressed, the air intake check valve 48 is closed, the gas inside the air chamber 45 is compressed, the film 410 expands, the mounting groove 416 moves upward and communicates with the second through hole 47, and the gas stored in the film 410 is discharged from the hollow groove 417, the mounting groove 416, and the second through hole 47, and the hollow placement ball 415 leaks out to absorb ethanol and reduce the overflow of ethanol; the motor 44 continues to rotate, and the extrusion column 411 is compressed. The bottom of the pressure column 411 moves from the top of the hand wheel 6 to the vertical plane 420, and the extrusion column 411 moves downward and resets under the elastic force of the reset spring 412. The ethanol at the bottom of the lower cover 42 enters the air chamber 45 from the air intake pipe 49 and the air intake one-way valve 48. The inhaled ethanol is subsequently squeezed and discharged from the hollow placement ball 415. The hollow placement ball 415 has a built-in adsorbent to absorb the ethanol. As a third measure, it reduces the overflow of ethanol. Compared with the static absorption in the prior art, it enhances the fluidity of ethanol, improves the absorption efficiency, and reduces ethanol residue and residual.

[0055] The present invention also provides a processing technology using the above-mentioned automatic energy-saving crystallization centrifugal distillation tank, and the processing technology comprises the following steps:

[0056] S1: Add ethanol solvent to 97% isopulegol liquid, cool to -40 degrees Celsius, and precipitate crystals.

[0057] S2: Most of the ethanol solvent is removed by centrifugation to obtain 99.9% crystals.

[0058] S3: After heating and melting the crystals containing 5% ethanol solvent, the ethanol solvent is removed through the distillation tank body 1.

[0059] S4: Filter and barrel.

[0060] Specific working method: when the valve 5 is opened and closed, the motor 44 rotates to drive the air chamber 45 and the extrusion column 411 to rotate, and the hand wheel 6 is driven to rotate forward and reverse through the vertical section or vertical side 419 on the outer side of the bottom of the extrusion column 411, thereby realizing the opening and closing of the valve 5. In terms of position relationship, when the hand wheel 6 rotates upward, the valve 5 is opened, and when the hand wheel 6 rotates downward, the valve 5 is closed. When the valve 5 is fully closed, the top of the arc side 418 will be flush with the bottom of the arc surface 421.

[0061] During distillation, ethanol flows from the exhaust pipe 2 and the valve 5 to the collecting mechanism. If the valve 5 overflows due to aging or other reasons, the ethanol detection mechanism 422 detects the ethanol and sends an electrical signal to the data processor. The data processor sends an electrical signal to the motor 44. The motor 44 rotates to drive the hand wheel 6 to rotate and close the valve 5. As a first measure to reduce the overflow of ethanol, (the distillation operation of the distillation tank body 1 is stopped synchronously, which is a relatively mature existing technology and will not be described in detail herein); the motor 44 continues to rotate, and the arc side 418 moves upward under the guidance of the arc surface 421, that is, the extrusion column 411 moves upward, and the reset spring 41 2 is compressed, the inlet check valve 48 is closed, the gas inside the gas chamber 45 is compressed, the film 410 expands, the mounting groove 416 moves up and communicates with the second through hole 47, the gas stored inside the film 410 is discharged from the hollow groove 417, the mounting groove 416, and the second through hole 47, and the hollow placement ball 415 leaks out to absorb ethanol, which is the second measure to reduce the overflow of ethanol; the motor 44 continues to rotate, the bottom of the squeezing column 411 moves from the top of the hand wheel 6 to the vertical plane 420, and the squeezing column 411 moves down and resets under the elastic force of the reset spring 412. The density of ethanol gas is 1.59kg / m³, while the air is The density under standard conditions is about 1.29kg / m³, that is, ethanol gas will sink in the air, and ethanol at the bottom of the lower cover 42 enters the gas chamber 45 from the intake pipe 49 and the intake check valve 48. The inhaled ethanol is subsequently squeezed (the specific process is as described above) and discharged from the hollow placement ball 415. The hollow placement ball 415 has a built-in adsorbent to absorb ethanol. As a third measure to reduce the overflow of ethanol, compared with the static absorption in the prior art, the fluidity of ethanol is enhanced, the absorption efficiency is improved, and the ethanol residue and residue are reduced; the hollow placement ball 415 moves up to contact the brush 414, and part of the bristles of the brush 414 are inserted The hollow placement ball 415 enters the hollow placement ball 415, which hinders the upward movement of the hollow placement ball 415. The bristles are flexible and can be bent and reset, so that the hollow placement ball 415 rotates. The hollow placement ball 415 moves downward and also contacts the brush 414, but at this time the moving direction of the hollow placement ball 415 is close to the inclination direction of the brush 414, and there is only a small friction between the two. The hollow placement ball 415 may rotate, but the amplitude is small. Therefore, the hollow placement ball 415 will rotate, and its exposed position is constantly changing, so that the adsorbent in each part can be fully utilized, and the adsorption efficiency is further improved. As the fourth measure, the spillage and residue of ethanol are reduced.

[0062] When the staff performs maintenance, they disassemble the assembly unit 43 and remove the upper cover 41 and the lower cover 42 .

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic energy-saving crystallization centrifugal distillation tank, comprising a distillation tank body (1), the top of the distillation tank body (1) is connected to and fixedly mounted with an exhaust pipe (2), the outside of the exhaust pipe (2) is connected to and mounted with a valve (5) for controlling the opening and closing of the exhaust pipe, the top of the valve (5) is mounted with a hand wheel (6) for controlling the opening and closing of the valve (5), and the periphery of the hand wheel (6) is mounted with an anti-overflow mechanism (4) for preventing overflow and absorbing dirt, characterized in that: The anti-overflow mechanism (4) comprises a plurality of groups of squeezing columns (411) capable of moving in a vertical direction, a plurality of hollow placement balls (415) being inlaid and rotatably mounted inside the squeezing columns (411), an adsorbent being placed inside the hollow placement balls (415), and an air bin (45) being slidably mounted on the outside of the squeezing columns (411), the air bin (45) and the squeezing columns (411) being staggered and sealed when idle, and the hollow placement balls (415) being in a sealed state; When the ethanol detection mechanism (422) detects that the valve (5) is leaking, the extrusion column (411) moves upward, and the hollow placement ball (415) leaks out to absorb the leaked ethanol; The brush (414) is installed tilted downward, the hollow placement ball (415) moves upward and interferes with the brush (414), and the hollow placement ball (415) rotates to change its exposed position; The squeezing column (411) moves up and down, sucking the leaked ethanol from the intake check valve (48) and discharging it from the hollow placement ball (415); An air intake check valve (48) is connected and fixedly installed on the top of the air bin (45). An air intake pipe (49) is connected and fixedly installed on the top of the air intake check valve (48). The upper half of the air intake pipe (49) is made of a hard material, and the lower half is made of a soft material. The bottom of the air intake pipe (49) is in contact with the bottom of the lower cover (42).

2. The automatic energy-saving crystallization centrifugal distillation tank according to claim 1, characterized in that: An upper cover (41) and a lower cover (42) are installed on the outer side of the exhaust pipe (2), and an assembly unit (43) is fixedly installed on one end of the upper cover (41) and the lower cover (42) close to each other.

3. The automatic energy-saving crystallization centrifugal distillation tank according to claim 2, characterized in that: A motor (44) is fixedly mounted on the inner side of the upper cover (41), and a plurality of air chambers (45) are evenly fixedly mounted on the output end of the motor (44).

4. The automatic energy-saving crystallization centrifugal distillation tank according to claim 3, characterized in that: The ethanol detection mechanism (422) is fixedly mounted on the inner bottom of the lower cover (42), and the ethanol detection mechanism (422) is electrically connected to the motor (44).

5. The automatic energy-saving crystallization centrifugal distillation tank according to claim 1, characterized in that: A plurality of matching holes matching the bottom of the extrusion column (411) are formed through the top of the hand wheel (6), and the matching holes include a vertical surface (420) and an arc surface (421). The bottom of the extrusion column (411) is provided with an arcuate side (418) and a vertical side (419), the arcuate side (418) matches with the arcuate surface (421), and the vertical side (419) matches with the vertical surface (420).

6. The automatic energy-saving crystallization centrifugal distillation tank according to claim 5, characterized in that: A return spring (412) is fixedly mounted between the top of the extrusion column (411) and the inner top of the gas chamber (45).

7. The automatic energy-saving crystallization centrifugal distillation tank according to claim 6, characterized in that: A plurality of first through holes (46) are formed through the outer side of the gas chamber (45) near the top, and a film (410) is fixedly installed on the outer periphery of the first through holes (46) of the gas chamber (45).

8. The automatic energy-saving crystallization centrifugal distillation tank according to claim 7, characterized in that: A mounting rod (413) is fixedly mounted on the top of the inner side of the gas bin (45), and a brush (414) is fixedly mounted on the periphery of the mounting rod (413).

9. The automatic energy-saving crystallization centrifugal distillation tank according to claim 8, characterized in that: A hollow groove (417) is provided at the top of the extrusion column (411), a mounting groove (416) is provided inside the extrusion column (411), a hollow placement ball (415) is movably mounted in the mounting groove (416), the mounting groove (416) is connected to the hollow groove (417), the mounting rod (413) is located in the middle of the hollow groove (417), and a plurality of second through holes (47) are provided through the outside of the gas chamber (45).

10. The automatic energy-saving crystallization centrifugal distillation tank according to claim 1, characterized in that: A pressure gauge (3) is installed on the top of the distillation tank body (1).

11. A processing technology using the automatic energy-saving crystallization centrifugal distillation tank according to any one of claims 1 to 10, characterized in that: The processing technology includes the following steps: S1: adding ethanol solvent to 97% isopulegol liquid, cooling to -40 degrees Celsius, and precipitating crystals; S2: Most of the ethanol solvent is removed by centrifugation to obtain 99.9% crystals; S3: heating and melting the crystals containing 5% ethanol solvent, and then removing the ethanol solvent through the distillation tank body (1); S4: Filter and barrel.

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